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SubjectCgroup hung system with rt patch, tested under 4.4.32/4.4.66/4.9.30
Hi RT Devs,

I enabled cpu/cpuacct/cpuset/devices/freezer subsystems in cgroup.

Attach serveral thread ids to these systems' tasks file frequently
last 4 or 5 hours(start process, echo thread ids to tasks, stop
process). The system will hung, no response to user keyboard input.
Through I have enabled kdmp, but this scenario didn't trigger kdump.

Pls help.


Thanks

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